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3 years ago

PLEASE HELP ASAP!

1 answer:

4 0

If you multiply the probability options together (the chance of getting any of the chocolates, any of the tea, any of the kinds of cookies and any of the kinds of crackers)... you get 1/600

The reason that you multiply is the probability is dependent on you getting those 4 exact options together

1/8 * 1/3 * 1/5 * 1/5 = 1/600 or about .00166

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3 years ago

A softball pitcher has a 0.675 probability of throwing a strike for each pitch and a 0.325 probability of throwing a ball. If th

Dafna11 [192]

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The probability that exactly 19 of them are strikes is 0.1504

Step-by-step explanation:

The binomial probability parameters given are;

The probability that the pitcher throwing a strike, p = 0.675

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The binomial probability is given as follows;

$p(x) = _{n}C_{x}\cdot p^{x}\cdot q^{1-x}$

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x = Required probability

Therefore, the probability that the pitcher throws 19 strikes out of 29 pitches is found as follows;

The probability that exactly 19 of them are strikes is given as follows;

$\binom{29}{19}(0.675)^{19}0.325^{10} = \frac{29!}{19!\times 10!}\times (0.675)^{19}\times 0.325^{10} = 0.1504$

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